gene pollution

If 1 edited gene join the human gene pool, what is the result after generations?
This is a simulator.

Initial conditions:

1. Normal man: 20000, Normal woman 20000, Gene pulluted man: 1, Gene pulluted woman: 0
2. One man and one woman will generate 3 children(next generation) and this couple will not involve next round generation
   
3. The child will 50% to be a boy or a girl, independently
   
4. If normal gene meet normal gene, the children will be normal(pure)
   
5. If a normal gene meet an edited gene, the children will be edited(pollute)
   
6. If an edit gene meet an edited gene, no child (harm)
   

Conclusion: This gene is too strong. The human distinguish at 23th generation.
The posterity always carry the pollut gene so the pollut gene will conquer normal gene, always.